Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693868 | Method for producing optically active diphosphine compounds | Xiaoyong Zhang, Tatsuya Ohmoto, Akifumi Yoshida, Tohru Yokozawa | 1997-12-02 |
| 5631397 | Process for producing optically active diaminohexanone derivative | Tetsuro Yamasaki, Hidenori Kumobayashi, Toshiyuki Murayama, Noboru Sano, Takero Ishizaki | 1997-05-20 |
| 5616751 | Oxotitanium complex, asymmetric hydrogenation catalyst comprising the complex, and process for producing .beta.-hydroxy ketone or .alpha.-hydroxy carboxylic acid ester using the complex | Takeshi Nakai, Dai Kitamoto | 1997-04-01 |